DevExpress学习之ASPxGridView后台增加列

public void BindRecordList()

{

String sqlAll=”select ID,”;

if (ASPxGridView1.Columns.Count == 0)

{

//手动绑定数据

DevExpress.Web.ASPxGridView.GridViewDataTextColumn dl = newDevExpress.Web.ASPxGridView.GridViewDataTextColumn();

dl.Caption = "显示出来的头部";

dl.FieldName = "AgentId";

gvRecordList.Columns.Add(dl);

//从数据库中取的要绑定的列名与描述

DataTable dsWidth = gd.getGradeReg();

String Sqlcolumn=””;

for (int i = 0; i < dsWidth.Rows.Count; i++)

{

DevExpress.Web.ASPxGridView.GridViewDataTextColumn datacolumn = newDevExpress.Web.ASPxGridView.GridViewDataTextColumn();

//绑定列的描述

datacolumn.Caption = dsWidth.Rows[i]["GrShow"].ToString();

//绑定列的字段

datacolumn.FieldName = dsWidth.Rows[i]["GrName"].ToString().Trim();

datacolumn.UnboundType = DevExpress.Data.UnboundColumnType.Bound;

ASPxGridView1.Columns.Add(datacolumn);

//取得sql语句中的字段

Sqlcolumn+=” , “+ dsWidth.Rows[i]["GrName"].ToString().Trim()

}

}

DataSet dsRecord = null;

try

{//取得完整的sql语句

sqlAll += ColonmFileds + " from Recording " + sqlQuery();

dsRecord = SQLHelper.Query(sqlAll);

//绑定数据源

ASPxGridView1.DataSource = dsRecord.Tables[0].DefaultView;

ASPxGridView1.DataBind();

}

catch

{

throw;

}

}

GridView在后台动态绑定列或者增加列的语句为：

for (int i = 0; i < dsWidth.Rows.Count; i++)

{

BoundField bf = new BoundField();

bf.DataField = dsWidth.Rows[i]["GrName"].ToString().Trim();//字段名

bf.HeaderText = dsWidth.Rows[i]["GrShow"].ToString();//列名

GridView1.Columns.Insert(i, bf);

}